SDL_resize.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:2k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Sam Lantinga
- slouken@libsdl.org
- */
- #ifdef SAVE_RCSID
- static char rcsid =
- "@(#) $Id: SDL_resize.c,v 1.4 2002/04/22 21:38:02 wmay Exp $";
- #endif
- /* Resize event handling code for SDL */
- #include "SDL_events.h"
- #include "SDL_events_c.h"
- #include "SDL_sysvideo.h"
- /* Keep the last resize event so we don't post duplicates */
- static struct {
- int w;
- int h;
- } last_resize;
- /* This is global for SDL_eventloop.c */
- int SDL_PrivateResize(int w, int h)
- {
- int posted;
- SDL_Event events[32];
- /* See if this event would change the video surface */
- if ( !w || !h ||
- ((last_resize.w == w) && (last_resize.h == h)) ) {
- return(0);
- }
- last_resize.w = w;
- last_resize.h = h;
- if ( ! SDL_VideoSurface ||
- ((w == SDL_VideoSurface->w) && (h == SDL_VideoSurface->h)) ) {
- return(0);
- }
- /* Pull out all old resize events */
- SDL_PeepEvents(events, sizeof(events)/sizeof(events[0]),
- SDL_GETEVENT, SDL_VIDEORESIZEMASK);
- /* Post the event, if desired */
- posted = 0;
- if ( SDL_ProcessEvents[SDL_VIDEORESIZE] == SDL_ENABLE ) {
- SDL_Event event;
- event.type = SDL_VIDEORESIZE;
- event.resize.w = w;
- event.resize.h = h;
- if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) {
- posted = 1;
- SDL_PushEvent(&event);
- }
- }
- return(posted);
- }